In a market as complex as IT, always changing at a high speed, Professor Sanz has also worked for different types of companies and in different roles, from Software Engineer to IT Manager, in huge enterprises as Telefónica (Research in Formal Description Techniques for testing network nodes, based on Object Oriented programming methodology) and other companies such as Dräger Hispania (IT manager, implementing a CRM and an ERP (BaaN) and OSIATIS (Manager of Engineering Division, developing IT projects in Intranet and Extranet portals, outsourcing and Computer and Communications systems). He is currently Manager of IT Infrastructure Division in Ibermática, Division with 1.500 people covering marketing, consultancy, sales and operations activities in the Managed Services, Outsourcing, Cloud Computing and BPO market.